2饲料颗粒大小和饲料形态对猪胃肠道健康的影响肠道损伤和溃疡是养猪生产中十分常见的问题,并且是目前在全球现代化、集约化猪场中普遍存在的问题(Grosse Liesner等,2009;Cappai等,2013),会造成高昂的经济损失(Friendship,2003)。通常非腺体类胃黏膜(pars esophagea)会受到这些疾病的影响,有1%~2%的农场猪会死于胃出血性溃疡,死亡猪大多为3月龄到6月龄(Cappai等,2013)。 2 Effect of feed particle size and feed form on gastrointestinal health in pigs Bowel lesions and ulcers are a very common problem in swine production and are a pervasive problem in modern, intensive farms around the world (Grosse Liesner et al. , 2009; Cappai et al., 2013), resulting in high economic losses (Friendship, 2003). Often, non-glandular pars esophagea is affected by these diseases, 1% -2% of farm pigs die of gastric hemorrhagic ulcers and most of the dead pigs are from 3 months to 6 months of age (Cappai et al. 2013).